bindings: Introduces ScriptWrappable::associateWithWrapper in addition to wrap.

Source/bindings/core/v8/ScriptWrappable.h

Index: Source/bindings/core/v8/ScriptWrappable.h
diff --git a/Source/bindings/core/v8/ScriptWrappable.h b/Source/bindings/core/v8/ScriptWrappable.h
index b3b1b9e601dfab79f1d413c29ef8eb6d342f5314..64ff48bef66b99b05735446f592f09db5c05d6cc 100644
--- a/Source/bindings/core/v8/ScriptWrappable.h
+++ b/Source/bindings/core/v8/ScriptWrappable.h
@@ -156,6 +156,9 @@ public:
     // Creates and returns a new wrapper object.
     virtual v8::Handle<v8::Object> wrap(v8::Handle<v8::Object> creationContext, v8::Isolate*);
 
+    // Associates the instance with the existing wrapper. Returns |wrapper|.
+    v8::Handle<v8::Object> associateWithWrapper(const WrapperTypeInfo*, v8::Handle<v8::Object> wrapper, v8::Isolate*);
+
     void setWrapper(v8::Handle<v8::Object> wrapper, v8::Isolate* isolate, const WrapperTypeInfo* wrapperTypeInfo)
     {
         ASSERT(!containsWrapper());